JPS5341154B1 - - Google Patents

Info

Publication number
JPS5341154B1
JPS5341154B1 JP1854672A JP1854672A JPS5341154B1 JP S5341154 B1 JPS5341154 B1 JP S5341154B1 JP 1854672 A JP1854672 A JP 1854672A JP 1854672 A JP1854672 A JP 1854672A JP S5341154 B1 JPS5341154 B1 JP S5341154B1
Authority
JP
Japan
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1854672A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of JPS5341154B1 publication Critical patent/JPS5341154B1/ja
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
    • C07D311/70—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with two hydrocarbon radicals attached in position 2 and elements other than carbon and hydrogen in position 6
    • C07D311/72—3,4-Dihydro derivatives having in position 2 at least one methyl radical and in position 6 one oxygen atom, e.g. tocopherols
JP1854672A 1971-02-25 1972-02-24 Pending JPS5341154B1 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11904871A 1971-02-25 1971-02-25

Publications (1)

Publication Number Publication Date
JPS5341154B1 true JPS5341154B1 (ja) 1978-10-31

Family

ID=22382303

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1854672A Pending JPS5341154B1 (ja) 1971-02-25 1972-02-24

Country Status (8)

Country Link
US (1) US3708505A (ja)
JP (1) JPS5341154B1 (ja)
CA (1) CA968805A (ja)
DE (1) DE2208795C3 (ja)
FR (1) FR2126214B1 (ja)
GB (1) GB1371701A (ja)
IL (1) IL38718A (ja)
IT (1) IT990452B (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006514959A (ja) * 2003-01-13 2006-05-18 ディーエスエム アイピー アセッツ ビー．ブイ． 酢酸α−トコフェリルの製造方法
JP2006515280A (ja) * 2002-11-21 2006-05-25 ディーエスエム アイピー アセッツ ビー．ブイ． トコフェリルアセタートの製造

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055575A (en) * 1975-03-20 1977-10-25 Scm Corporation Synthesis of dehydrophytol and vitamin E
US4191692A (en) * 1976-02-20 1980-03-04 Basf Aktiengesellschaft Manufacture of tocopherol
DE2606830C3 (de) * 1976-02-20 1981-08-27 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von Tocopherol
JPS6019309B2 (ja) * 1976-09-29 1985-05-15 日清製粉株式会社 高純度ｄｌ−α−トコフエロ−ルの製造法
DE3203487A1 (de) * 1982-02-03 1983-08-11 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von tocopherylacetat oder tocopherylpropionat
DE4208477A1 (de) * 1992-03-17 1993-09-23 Basf Ag Verfahren zur herstellung von vitamin e
US5663376A (en) † 1994-07-27 1997-09-02 Eisai Co., Ltd. Process for the preparation of α-tocopherol
FR2733977B1 (fr) * 1995-05-10 1997-07-04 Rhone Poulenc Nutrition Animal Procede de preparation de phenols substitues
EP0782993B1 (de) * 1996-01-05 2003-02-26 F. Hoffmann-La Roche Ag Verfahren zur Herstellung von d,l-alpha-Tocopherol in Gegenwart einer Perfluoralkylensulfonsäure als Katalysator
US6005122A (en) * 1996-12-23 1999-12-21 Basf Aktiengesellschaft Preparation of α-tocopherol or α-tocopheryl acetate by reacting trimethylhydroquinone and phytol or isophytol, with recycling of the zinc halide condensation catalyst
DE69931421T2 (de) * 1998-04-06 2006-11-09 Dsm Ip Assets B.V. Verfahren zur Herstellung von d,l-alpha-Tocopherol in einem Carbonat-Lösungsmittel und in Anwesenheit eines sauren schwefelhaltigen Katalysators
FR2784104B1 (fr) * 1998-09-18 2002-12-27 Rhone Poulenc Nutrition Animal Procede de preparation de la vitamine e
ATE298330T1 (de) 2000-11-22 2005-07-15 Basf Ag Verfahren zur kontinuierlichen acylierung von chromanolesterderivaten
JP4999690B2 (ja) * 2004-06-11 2012-08-15 ディーエスエム アイピー アセッツ ビー．ブイ． クロマン誘導体、特にα−トコフェロールおよびそのアルカノエートの製造方法
CN106565659B (zh) * 2016-11-01 2019-06-18 万华化学集团股份有限公司 一种制备维生素e乙酸酯的方法
CN108409704A (zh) * 2018-01-24 2018-08-17 上海优合生物科技有限公司 一种高纯度生育酚琥珀酸酯盐的制备方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2411969A (en) * 1938-03-31 1946-12-03 Hoffmann La Roche Process for the preparation of synthetic dl-tocopherols
US2411968A (en) * 1938-03-31 1946-12-03 Hoffmann La Roche Process for the preparation of synthetic dl-tocopherols

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006515280A (ja) * 2002-11-21 2006-05-25 ディーエスエム アイピー アセッツ ビー．ブイ． トコフェリルアセタートの製造
JP4932158B2 (ja) * 2002-11-21 2012-05-16 ディーエスエム アイピー アセッツ ビー．ブイ． トコフェリルアセタートの製造
JP2006514959A (ja) * 2003-01-13 2006-05-18 ディーエスエム アイピー アセッツ ビー．ブイ． 酢酸α−トコフェリルの製造方法

Also Published As

Publication number Publication date
IL38718A (en) 1975-02-10
FR2126214B1 (ja) 1977-07-15
FR2126214A1 (ja) 1972-10-06
GB1371701A (en) 1974-10-23
US3708505A (en) 1973-01-02
CA968805A (en) 1975-06-03
DE2208795A1 (de) 1972-08-31
DE2208795B2 (de) 1978-03-09
DE2208795C3 (de) 1978-11-02
IL38718A0 (en) 1972-04-27
IT990452B (it) 1975-06-20

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